Improvement in fountain-pens



F. 0. GONE.

FOUNTAIN PEN.

Patented Oct. 11, 1870.

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FRANCIS C. CONE, OF, SAN FRANCISCO, CALIFORNIA.

Letters Patent No. 108,110, dated October 11, 1870; antedated October 8, 1870.

' IMPROVEMENT IN FOUNTAIN-FEMS,

The schefiule referred to in these Letters Patent and making part of the same.

To whom it may concern Be it known that I, FRANCIS C. Com-of the city and county of San Francisco, State of California, have invented an Improved Supply Pen-holder; and I do hereby declare the following description and accompanyiug drawing aresufiicient to enable any person skilled in the art orscionce to which it most nearly appertainsto make and use my said invention or improvements without further invention or experiment.

Figure l is a view of the under side of my improved pen-holder;

Figure 2, an edge view of the same;

Figure 3, a sectional view, showing the valve C, contracted in its length, and filliugthe opening a; and

' Figured is a sectional view, showing the .valve C elongated, and, consequently, narrowed, so asto leave the passage to partially open.-

The object of my presentfinvcnt-ion is to provide an improved device, which I call asupply pen-holder; and

I It consists in forming the holder hollow, and with a small aperture at the bottom, just within the curve of the pen.

A piece of elastic rubber extends out through this hole and along the inside of the pen to near the nib.

This rubber is so large that, when contracted, it fills the hole, and makes it perfectly tight; but, if extended, by a movemeut'oi' the'finger operating a slide 7 and clasp, the ink will be allowed to fill the ,pen, and the motion of the rubber in the hole will always clear out any sediment and insure the flow of the ink.

Referring to the accompanying drawing for a more complete explanation-5 A is a hollowpen-holder, provided with asuitable device, of one of the known forms, for holding the pen B, any stvle of pen being used as suits the convenience or taste of the writer.

. The lower end of' the holder has anaperture or short tube, apiercedso as to open just in front of the pen, as shown.

An elastic strip of material, C, has one end fast eued within the holder A, and the other end extends out through the aperture a, and lies along the inside of the curve of the pen to near the nib.

This elastic strip completely fills the hole, when in its ordinary condition, thus making it perfectly tight.

A roughened slide, D, is fixed to move up and down on the outside of the holder, at its lower end, and in such a position that one-finger naturally rests upon it 'while writing.

, A bent wire," l, extends down from this slide, and is split at the end, so as to clasp the strip just be low the aperture-a.

The operation is as follows:

When ready to write, the finger is pressed upon the slide D, so as to more itdownward, carrying the bent wire (I, and thus stretching the rubber or elastic strip C, so as to make it-smaller, and allow a pen full of ink to flow out-,- the operation being. repeated as needed.

A very important advantage is, that the motion of the strip C, in the aperture or tube,- serves to clean it and free it from .11 sediment, which would soon clog and render it useless but for this cleanin The top of the holder may have a screw or other device to let in. air, when it is needed, so that its pressure will allow the ink to fiow.

Having thus described my invention,

What I desire to secure by Letters Patent is 1. Opening and clos ng the supply-aperture a, by means of an elastic strip, C, substantially as' herein described.

2. The combination,'withthc elastic valve C, of the slide D, and clasp (I, for operating the same, substantially as described. p

In witness whereof, I have hereunto set my'hand and seal. 7 v

FRANCIS C. CONE. [L. 5.]

Witnesses:

J. L. Boom, Geo; H. STRONG. 

